Electrostatics Question 279

Question:The capacitor A has a charge q on it whereas B is uncharged. The charge appearing on the capacitor B a long time after the switch is closed is [IIT-JEE (Screening) 2001]

Options:

A) $ 1500V $

B) $ 1000\ V $

C) $ 500\ V $

D) $ 400\ V $

Show Answer

Answer:

Correct Answer: C

Solution:

The given circuit can be redrawn as follows

$ (V _{A}-V _{B})=( \frac{15}{5+15} )\times 2000 $

therefore $ V _{A}-V _{B}=1500V $

therefore $ 2000-V _{B}=1500V $

therefore $ V _{B}=500V $



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